I like beer, but I LOVE whiskey. So I figured after, what, four beer threads, not including posts that turned into beer threads, I'd start one for booze.
Whiskey - Bushmills is a timeless classic, Bulleit is a new favorite. Maker's Mark is always a winner as well. All three are good on the rocks or with a splash of water. If you're looking for something to mix, Fighting Cock (103 proof) is good stuff.
Vodka - My wife's new favorite is Crater Lake. Comes in a frosted bottle with a cork, and they're each batch numbered by hand. It's only about $20 per fifth, and it's really great vodka. You can't taste it at all. Crater Lake also makes a Juniper Gin that's great, but I've only found it in samplers (airplane bottles).
Those are the two staples at our house. I stick to the straight stuff, Mrs. Right likes Martinis. I can share recipes if anyone wants (or you can).
What else is everyone drinking?